tornado, whirlwind; dust devil.
     [rotation of an automobile] spin-out.
     axis, axis of rotation, swivel, pivot, pivot point; axle, spindle,
pin, hinge, pole, arbor, bobbin, mandrel; axle shaft; gymbal; hub, hub of rotation.
     [rotation and translation together] helix, helical motion.
     [measure of rotation] angular momentum, angular velocity; revolutions
per minute, RPM.
     [result of rotation] centrifugal force; surge; vertigo, dizzy round;
coriolus force.
     [things that go around] carousel, merry-go-round; Ferris wheel; top,
dreidel ,teetotum[obs3]; gyroscope; turntable, lazy suzan; screw, whirligig, rolling stone[obs3], water wheel, windmill; wheel, pulley wheel, roulette wheel, potter’s wheel, pinwheel, gear; roller; flywheel; jack; caster; centrifuge, ultracentrifuge, bench centrifuge, refrigerated centrifuge, gas centrifuge, microfuge; drill, augur, oil rig; wagon wheel, wheel, tire, tyre[Brit][Brit].
     [Science of rotary motion] trochilics[obs3].
     [person who rotates] whirling dervish. 
     V. rotate; roll along; revolve, spin; turn round; circumvolve[obs3];
circulate; gyre, gyrate, wheel, whirl, pirouette; twirl, trundle, troll, bowl.
     roll up, furl; wallow, welter; box the compass; spin like a top, spin
like a teetotum|!.
     [of an automobile] spin out. 
     Adj. rotating &c.v.; rotary, rotary; circumrotatory[obs3],
trochilic[obs3], vertiginous, gyratory; vortical, vorticose[obs3]. 
     Adv. head over heels, round and round, like a horse in a mill.

—­ most of this should go under change (make a 146a)... develop not in change section!! revolution, evolution. revolution = change = #146—­
     #313. [Motion in the reverse circle.] Evolution. —­ N. evolution,
unfolding, development; evolvement; unfoldment; eversion &c. (inversion) 218. 
     V. evolve; unfold, unroll, unwind, uncoil, untwist, unfurl, untwine,
unravel; untangle, disentangle; develop. 
     Adj. evolving &c. v.; evolved &c. v.

—­ p. 93 —­

     #314. [Reciprocating motion, motion to and fro.] Oscillation. —­ N.
oscillation; vibration, libration; motion of a pendulum; nutation; undulation; pulsation; pulse.
     alternation; coming and going &c. v.; ebb and flow, flux and reflux,
ups and down.
     fluctuation; vacillation &c. (irresolution) 605.
     wave, vibratiuncle[obs3], swing, beat, shake, wag, seesaw, dance,
lurch, dodge; logan[obs3], loggan[obs3], rocking-stone, vibroscope[obs3]. 
     V. oscillate; vibrate, librate[obs3]; alternate, undulate, wave; rock,
swing; pulsate, beat; wag, waggle; nod, bob, courtesy, curtsy; tick; play; wamble[obs3], wabble[obs3]; dangle, swag.
     fluctuate, dance, curvet, reel, quake; quiver, quaver; shake, flicker;
wriggle; roll, toss, pitch; flounder, stagger, totter; move up and down, bob up and down &c.  Adv.; pass